This is a really sweet image of sunflowers, and with the colours and farm connotations, it could be a really interesting theme for the truck. Although, this image seems a bit old fashioned for the modern theme of trucks.
Watercolour study on watercolour paper using W and N Artists paints. & Irises are taking my attention at the moment in anticipation of them flowering in a few weeks time. & I loved the colours in this one, the pinks turning to apricots and purples.